Combination Electric Toothbrush and Water Irrigation Device

ABSTRACT

A combination electric toothbrush and water irrigation device that combines a battery powered water irrigation device with a vibrating electric toothbrush, both of which are housed in a self-contained compact hand-held device. The pump for the water irrigation device and the DC motor with an off-center weight are contained within the handle of the toothbrush. A slide out water reservoir allows the user to fill the extended handle portion with water. A flexible water inlet tube is capable of compressing when the water reservoir is in the storage position. A weight fixed to the end of the inlet tube causes the tube to bend via gravity enabling it to be in constant contact with water while the handle is held at various angles. An LED at the underside of the pump housing illuminates the water contained within the transparent water housing.

CROSS REFERENCE TO RELATED APPLICATIONS

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STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT

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Description of Attached Appendix

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BACKGROUND OF THE INVENTION

This invention relates generally to the field of teeth and gum cleaning devices and more specifically to a combination electric toothbrush and water irrigation device that is portable and can be held in one hand during use.

teeth cleaning devices have been used for hundreds of years and are essential to successful oral hygiene. A well-known method of cleaning teeth is the use of an electric toothbrush including rotary brush design and a vibrating brush design. Another well-known method of cleaning teeth and gums is the use of an oral irrigator such as the Watepik device that pumps water from a reservoir to an exit tube that is held by the user to blast water onto teeth and gums to remove unwanted dental debris.

Although the use of both of these valuable teeth and gum cleaning tools exists today, the user must purchase and maintain and store two different products for cleaning teeth.

Additionally, the user does not have the option to use both the electric brushing feature and the water irrigation feature at the same time if so desired. Finally, the user has not had the ability to recharge the battery power supply of both the electric toothbrush and the water irrigation device at the same time.

BRIEF SUMMARY OF THE INVENTION

The primary object of the invention is to provide a single teeth cleaning device that includes both an electric toothbrush and a water irrigation device.

Another object of the invention is to provide an electric tooth brush and water irrigation device that is fully portable and can be easily held in one hand.

Another object of the invention is to provide an electric toothbrush and water irrigation device that can be recharged when placed on a recharging stand.

A further object of the invention is to provide an electric toothbrush and water irrigation device that can be used while being held at a variety of angles.

Yet another object of the invention is to provide an electric toothbrush and water irrigation device where the user can select the use of one function or both functions at same time.

Still yet another object of the invention is to provide an electric toothbrush and water irrigation device that allows the user to easily remove and replace both the water irrigation tube and the toothbrush head.

Another object of the invention is to provide an electric toothbrush and water irrigation device that includes an LED display that illuminates the water storage compartment during use.

Other objects and advantages of the present invention will become apparent from the following descriptions, taken in connection with the accompanying drawings, wherein, by way of illustration and example, an embodiment of the present invention is disclosed.

In accordance with a preferred embodiment of the invention, there is disclosed a combination electric toothbrush and water irrigation device comprising: a water reservoir housing, a water pump, a pump housing and handle portion, a charging circuit, a battery power supply, a DC motor, an off-center weight, a brush neck, a brush head, a water exit tube, a weight member, a water inlet tube, a charging stand, a pump on-off switch, a vibrator on-off switch, an LED illuminating device, said water reservoir housing walls slidably engaged with the outer walls of said housing and handle portion, said water pump housed within said pump housing and handle portion, said charging circuit, said pump on-off switch and said battery power supply also housed within said pump housing and handle portion, said off center weight attached to the shaft of said DC motor, said DC motor and weight housed within said brush neck, said battery power supply attached to said pump and said vibrating brush motor, said vibrator on-off switch housed within said brush neck, said brush head attached to the top of said brush neck, said brush head including an aperture for receiving the end of said exit tube, said brush neck and said water exit tube capable of being removably replaced from the top portion of said pump housing and handle portion, said water exit tube extending from said water pump to the top portion of said brush head, said water entrance tube terminating at its distal end in said weight member, said water entrance tube attached at its proximal end to the water inlet of said water pump, said charging stand including an elongate portion that contains a portion of a charging circuit that aligns with the location of the said charging circuit located within said pump housing and handle portion, said LED illuminating device capable of illuminating the water in said water reservoir housing.

BRIEF DESCRIPTION OF THE DRAWINGS

The drawings constitute a part of this specification and include exemplary embodiments to the invention, which may be embodied in various forms. It is to be understood that in some instances various aspects of the invention may be shown exaggerated or enlarged to facilitate an understanding of the invention.

FIG. 1 is a front view of the invention.

FIG. 2 is a side view of the invention.

FIG. 3 is a side section view of the invention.

FIG. 4 is a side view of the invention in its charging stand.

FIG. 5 is an exploded view of the brush head and neck of the invention.

DETAILED DESCRIPTION OF THE DRAWINGS AND PREFERRED EMBODIMENTS

Detailed descriptions of the preferred embodiment are provided herein. It is to be understood, however, that the present invention may be embodied in various forms. Therefore, specific details disclosed herein are not to be interpreted as limiting, but rather as a basis for the claims and as a representative basis for teaching one skilled in the art to employ the present invention in virtually any appropriately detailed system, structure or manner.

Referring now to FIG. 1 we see a perspective front view of the invention 100. A transparent water housing 14 is slidably placed over a pump housing and handle member 12. The hollow portion 7 just above of the pump housing and handle 12 retains a vibrating DC motor 38 that, when turned on by on-off switch 6 causes brush neck member 8 and brush head 4 to vibrate which significantly improves the effectiveness of the brush 4 during teeth cleaning activity. On-off switch 10 turns on a water pump 26 located within housing 12 which causes water to be forced out of aperture 2 within brush head 4 as will be described in detail below.

FIG. 2 is a side view of the invention with the water reservoir housing 14 slid down so that it can hold water 15 that will be used for oral irrigation purposes. A flexible inlet tube 16 includes a weighted washer 20 that causes the end of the tube to move via gravity as the angle of the brush handle 12 changes during use. A spiral spring member 17 surrounds the tube 16 to help prevent it from crimping when in a compressed position. Weighted washer 20 insures that the inlet of tube 16 is always in position to accept water 15. In this way, the inlet tube 16 can use all of the stored water 15 no matter what the angle of the brush handle 12 and water reservoir 14. The side view also shoes a water outlet tube 22 that transfers pressurized water to its exit port 2 that is located just above brush bristles 4. Water-tight gasket 18 traps the water 15 in the reservoir 14 from spilling out and also acts as a frictional force to cause the water reservoir 14 to remain in place during use whether in the use position or in the storage position.

FIG. 3 is a side section view of the invention. Motor driven pump 26 can be seen inside the pump and handle housing 12. The upper area of the housing 12 contains a rechargeable battery 28 and a charging circuit 30. The hollow space 7 between the handle 12 and the brush neck 8 contains a DC motor 38 with an off-center weight 32 attached to its shaft. The vibration generated by the motor and weight cause the bristles of brush 4 to vibrate in a way that helps the brush remove tartar and other unwanted debris from the user's teeth. The cleaning results are superior in comparison to using a manual brush that does not vibrate. The vibrating solution takes up significantly less space than other electrically powered bristle moving devices that are currently available, which makes it a superior solution for the present invention 100 which seeks to combine the use of electrically assisted animated bristles and an electrical pump assisted water irrigation device within in one compact handheld device. The charging electronics includes an electricity receiving coil 46 that lets power be transferred from a charging coil 24 located within charging station 50 and through the side wall of the pump and handle housing 12. In this way, the charging of the battery 28 that powers both the pump 26 motor and the vibration motor 38 can be accomplished in a water-proof manner. An LED 48 located just below pump 26 points downward into water chamber creating an attractive color changing pattern during use.

FIG. 4 is a side view of the invention 100 showing it in place on charging stand 50. As mentioned above, an inductive coil shown by dotted line 24 transfers power from the charging stand 50 to the charging circuit 30 located within pump and handle housing 12. On-off switch 10 turns on or off the pump 26 motor. On-off switch 6 turns on or off the vibration motor 38. The user has the option to turn on one or the other or both of the switches 6, 10 simultaneously so that both features can be used at the same time. An optional timer circuit can be installed within the pump housing 12 that will automatically turn off the vibrating motor 38 after a fixed period of time. Additionally, a charging indicator light can be installed within the housing 12 to let the user know when the battery needs to be charged. Power cord and plug 60 supplies power to the charging stand 50. This view also shows flexible inlet tube 16 in the folded position when the stored position. The tube 16 can be prevented from permanently kinking by incorporating an external spring 17 as a sleeve surrounding the tube 16.

FIG. 5 is an exploded view showing the connection point of exit tube 22 and brush neck 8. A male connector fitting 70 engages the inside wall of exit tube 22. The tube 22 can be removed and replaced from the fitting 70. Brush neck 8 can be removed via quarter turn connector joint 36. In this way, the user can remove and replace both the exit tube 22 and the brush assembly 8, 4 so that other users can attach their own cleaning heads, or the cleaning head can be replaced after extended use.

While the invention has been described in connection with a preferred embodiment, it is not intended to limit the scope of the invention to the particular form set forth, but on the contrary, it is intended to cover such alternatives, modifications, and equivalents as may be included within the spirit and scope of the invention as defined by the appended claims. 

What is claimed is:
 1. Combination electric toothbrush and water irrigation device comprising: a water reservoir housing; a water pump; a pump housing and handle portion; a charging circuit; a battery power supply; a DC motor; an off-center weight; a brush neck; a brush head; a water exit tube; a weight member; a water inlet tube; a charging stand; a pump on-off switch; a vibrator on-off switch; an LED illuminating device; said water reservoir housing slidably engaged with the outer walls of said housing and handle portion; said water pump housed within said pump housing and handle portion; said charging circuit, said pump on-off switch and said battery power supply also housed within said pump housing and handle portion; said off center weight attached to the shaft of said DC motor; said DC motor and weight housed within said brush neck; said vibrator on-off switch housed within said brush neck; said brush head attached to the top of said brush neck; said brush head including an aperture for receiving the end of said exit tube; said brush neck and said water exit tube capable of being removably replaced from said pump housing and handle portion; said water exit tube extending from said water pump to the top portion of said brush head; said water entrance tube terminating at its distal end in said weight member; said water entrance tube attached at its proximal end to the water inlet of said water pump; said charging stand including an elongate portion that contains a portion of a charging circuit that matches the location of the said charging circuit located within said pump housing and handle portion; said LED illuminating device capable of illuminating the water in said water reservoir housing.
 2. A combination electric toothbrush and water irrigation device as claimed in claim 1 wherein said water pump or said vibrating DC motor can be used independently or both together at the same time.
 3. A combination electric toothbrush and water irrigation device as claimed in claim 1 wherein said water inlet tube is flexible and can be compacted when said water reservoir housing is in its storage position.
 4. A combination electric toothbrush and water irrigation device as claimed in claim 1 further comprising a timing circuit that controls the time of operation of said DC motor during a teeth cleaning episode.
 5. A combination electric toothbrush and water irrigation device as claimed in claim 1 further comprising a battery charge indicator light.
 6. A combination electric toothbrush and water irrigation device as claimed in claim 1 wherein said brush neck includes a quarter turn fastener allowing said neck to be removably replaced from said pump housing and handle portion.
 7. A combination electric toothbrush and water irrigation device as claimed in claim 1 further comprising a frictionally engaged pump exit tube that can removably retain said water exit tube.
 8. A combination electric toothbrush and water irrigation device as claimed in claim 1 wherein said water reservoir housing is transparent or translucent thereby allowing light emitted from said LED light to be seen. 